From 9d8c4538c7684167fa89cc6cc883c4caf6a8ed4b Mon Sep 17 00:00:00 2001
From: Jaybe <master@jaybe.dev>
Date: Mon, 8 Dec 2025 06:59:52 +0900
Subject: [PATCH] =?UTF-8?q?=EB=8C=80=EC=8B=9C=EB=B3=B4=EB=93=9C,=20GNB=20?=
 =?UTF-8?q?=EC=B6=94=EA=B0=80?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
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---
 src/app/api/dashboard/overview/route.ts       | 220 +++++++++++
 src/app/dashboard/page.tsx                    | 345 ++++++++++++++++++
 src/app/layout.tsx                            |   2 +-
 src/app/login/page.tsx                        |   6 +-
 src/app/page.tsx                              |  19 +-
 src/app/projects/page.tsx                     | 143 ++++++--
 src/app/projects/submissions/page.tsx         | 113 +++++-
 src/app/signup/page.tsx                       |   4 +-
 tailwind.config.js                            |   1 +
 tests/api/dashboard.spec.ts                   | 220 +++++++++++
 tests/e2e/auth.spec.ts                        |   8 +-
 tests/e2e/dashboard.spec.ts                   | 140 +++++++
 tests/e2e/projects.spec.ts                    | 105 +++++-
 tests/unit/AllProjectSubmissionsPage.spec.tsx |  89 ++++-
 tests/unit/DashboardPage.spec.tsx             |  94 +++++
 tests/unit/LoginPage.spec.tsx                 |   8 +-
 tests/unit/ProjectsPage.spec.tsx              | 156 +++++++-
 tests/unit/SignupPage.spec.tsx                |   8 +-
 18 files changed, 1595 insertions(+), 86 deletions(-)
 create mode 100644 src/app/api/dashboard/overview/route.ts
 create mode 100644 src/app/dashboard/page.tsx
 create mode 100644 tests/api/dashboard.spec.ts
 create mode 100644 tests/e2e/dashboard.spec.ts
 create mode 100644 tests/unit/DashboardPage.spec.tsx

diff --git a/src/app/api/dashboard/overview/route.ts b/src/app/api/dashboard/overview/route.ts
new file mode 100644
index 0000000..24374ae
--- /dev/null
+++ b/src/app/api/dashboard/overview/route.ts
@@ -0,0 +1,220 @@
+import { NextResponse } from "next/server";
+import { PrismaClient } from "@prisma/client";
+import { verifyAccessToken } from "@/features/auth/authCrypto";
+
+// 대시보드 개요 API (/api/dashboard/overview)
+// - 로그인한 사용자의 프로젝트/폼 제출 통계를 집계해 요약/프로젝트별 지표를 반환한다.
+// - DB 스키마: Project, FormSubmission
+// - 인증: pb_access 쿠키(JWT)를 검증해 현재 사용자 식별
+
+const prisma = new PrismaClient();
+
+interface AuthUser {
+  id: string;
+  email: string;
+  tokenVersion: number;
+}
+
+// 공통: pb_access 쿠키에서 JWT 토큰을 추출한다.
+function extractTokenFromCookieHeader(cookieHeader: string | null): string | null {
+  if (!cookieHeader) return null;
+
+  const parts = cookieHeader.split(";");
+  for (const part of parts) {
+    const trimmed = part.trim();
+    if (trimmed.startsWith("pb_access=")) {
+      const value = trimmed.substring("pb_access=".length);
+      return decodeURIComponent(value);
+    }
+  }
+  return null;
+}
+
+// 공통: Request 헤더의 쿠키에서 인증된 유저 정보를 복원한다.
+async function getAuthUserFromRequest(request: Request): Promise<AuthUser | null> {
+  const cookieHeader = request.headers.get("cookie");
+  const token = extractTokenFromCookieHeader(cookieHeader);
+  if (!token) return null;
+
+  const payload = await verifyAccessToken(token);
+  if (!payload) return null;
+
+  return {
+    id: payload.sub,
+    email: payload.email,
+    tokenVersion: payload.tokenVersion,
+  };
+}
+
+interface SummaryStats {
+  totalProjects: number;
+  totalSubmissions: number;
+  todaySubmissions: number;
+  last7DaysSubmissions: number;
+}
+
+interface DailySubmissionItem {
+  // 일별 제출 수 그래프를 위한 집계 데이터
+  date: string; // YYYY-MM-DD (UTC 기준)
+  count: number;
+}
+
+interface ProjectStatsItem {
+  projectId: string;
+  title: string;
+  slug: string;
+  status: string;
+  totalSubmissions: number;
+  lastSubmissionAt: string | null;
+}
+
+// GET /api/dashboard/overview
+// - 현재 로그인 사용자의 프로젝트 목록/폼 제출 내역을 조회해 통계를 계산한다.
+export async function GET(request: Request) {
+  const authUser = await getAuthUserFromRequest(request);
+  if (!authUser) {
+    return NextResponse.json(
+      { message: "대시보드를 조회하려면 로그인이 필요합니다." },
+      { status: 401 },
+    );
+  }
+
+  try {
+    // 현재 사용자 소유 프로젝트와, 해당 사용자가 소유한 제출 내역을 한 번에 로드한다.
+    const [projects, submissions] = await Promise.all([
+      prisma.project.findMany({
+        where: { userId: authUser.id },
+        select: {
+          id: true,
+          title: true,
+          slug: true,
+          status: true,
+        },
+      }),
+      prisma.formSubmission.findMany({
+        where: { userId: authUser.id },
+        select: {
+          id: true,
+          projectId: true,
+          projectSlug: true,
+          createdAt: true,
+        },
+      }),
+    ]);
+
+    const totalProjects = projects.length;
+    const totalSubmissions = submissions.length;
+
+    // 오늘/최근 7일 기준 시각 계산
+    const now = new Date();
+    const startOfToday = new Date(now);
+    startOfToday.setHours(0, 0, 0, 0);
+    const sevenDaysAgo = new Date(now.getTime() - 7 * 24 * 60 * 60 * 1000);
+
+    let todaySubmissions = 0;
+    let last7DaysSubmissions = 0;
+
+    for (const submission of submissions) {
+      const createdAt = submission.createdAt instanceof Date
+        ? submission.createdAt
+        : new Date(submission.createdAt as unknown as string);
+
+      if (createdAt >= startOfToday) {
+        todaySubmissions += 1;
+      }
+
+      if (createdAt >= sevenDaysAgo) {
+        last7DaysSubmissions += 1;
+      }
+    }
+
+    // 프로젝트별 통계 맵을 구성한다.
+    const statsByProjectId = new Map<
+      string,
+      {
+        projectId: string;
+        title: string;
+        slug: string;
+        status: string;
+        totalSubmissions: number;
+        lastSubmissionAt: Date | null;
+      }
+    >();
+
+    for (const project of projects) {
+      statsByProjectId.set(project.id, {
+        projectId: project.id,
+        title: project.title,
+        slug: project.slug,
+        status: project.status,
+        totalSubmissions: 0,
+        lastSubmissionAt: null,
+      });
+    }
+
+    for (const submission of submissions) {
+      const stat = submission.projectId ? statsByProjectId.get(submission.projectId) : null;
+      if (!stat) continue;
+
+      stat.totalSubmissions += 1;
+
+      const createdAt = submission.createdAt instanceof Date
+        ? submission.createdAt
+        : new Date(submission.createdAt as unknown as string);
+
+      if (!stat.lastSubmissionAt || createdAt > stat.lastSubmissionAt) {
+        stat.lastSubmissionAt = createdAt;
+      }
+    }
+
+    const projectStats: ProjectStatsItem[] = Array.from(statsByProjectId.values()).map((item) => ({
+      projectId: item.projectId,
+      title: item.title,
+      slug: item.slug,
+      status: item.status,
+      totalSubmissions: item.totalSubmissions,
+      lastSubmissionAt: item.lastSubmissionAt ? item.lastSubmissionAt.toISOString() : null,
+    }));
+
+    const summaryStats: SummaryStats = {
+      totalProjects,
+      totalSubmissions,
+      todaySubmissions,
+      last7DaysSubmissions,
+    };
+
+    // 일별 전체 제출 수를 집계해 그래프용 데이터로 변환한다.
+    const countsByDate = new Map<string, number>();
+
+    for (const submission of submissions) {
+      const createdAt = submission.createdAt instanceof Date
+        ? submission.createdAt
+        : new Date(submission.createdAt as unknown as string);
+
+      const dateKey = createdAt.toISOString().slice(0, 10); // YYYY-MM-DD
+      const prev = countsByDate.get(dateKey) ?? 0;
+      countsByDate.set(dateKey, prev + 1);
+    }
+
+    const dailySubmissions: DailySubmissionItem[] = Array.from(countsByDate.entries())
+      .map(([date, count]) => ({ date, count }))
+      .sort((a, b) => a.date.localeCompare(b.date));
+
+    return NextResponse.json(
+      {
+        summaryStats,
+        projectStats,
+        dailySubmissions,
+      },
+      { status: 200 },
+    );
+  } catch (error: any) {
+    return NextResponse.json(
+      {
+        message: "대시보드 데이터를 계산하는 중 오류가 발생했습니다.",
+        error: error?.message,
+      },
+      { status: 500 },
+    );
+  }
+}
diff --git a/src/app/dashboard/page.tsx b/src/app/dashboard/page.tsx
new file mode 100644
index 0000000..482f5c0
--- /dev/null
+++ b/src/app/dashboard/page.tsx
@@ -0,0 +1,345 @@
+"use client";
+
+import { useEffect, useState } from "react";
+import { useRouter } from "next/navigation";
+import Link from "next/link";
+import { FolderKanban, LayoutDashboard, ListChecks, SunMoon } from "lucide-react";
+
+// 대시보드 페이지 (/dashboard)
+// - /api/dashboard/overview 에서 요약/프로젝트별 통계를 가져와 카드 형태로 렌더링한다.
+// - 비로그인(401) 응답 시 로그인 페이지로 리다이렉트하고 에러 메시지를 표시한다.
+
+interface SummaryStats {
+  totalProjects: number;
+  totalSubmissions: number;
+  todaySubmissions: number;
+  last7DaysSubmissions: number;
+}
+
+interface DailySubmissionItem {
+  // 일별 제출 수 그래프를 위한 집계 데이터
+  date: string; // YYYY-MM-DD
+  count: number;
+}
+
+interface ProjectStatsItem {
+  projectId: string;
+  title: string;
+  slug: string;
+  status: string;
+  totalSubmissions: number;
+  lastSubmissionAt: string | null;
+}
+
+type PageStatus = "idle" | "loading" | "error";
+
+export default function DashboardPage() {
+  const router = useRouter();
+
+  const [summary, setSummary] = useState<SummaryStats | null>(null);
+  const [projects, setProjects] = useState<ProjectStatsItem[]>([]);
+  const [dailySubmissions, setDailySubmissions] = useState<DailySubmissionItem[]>([]);
+  const [status, setStatus] = useState<PageStatus>("idle");
+  const [errorMessage, setErrorMessage] = useState<string | null>(null);
+  const [isMenuOpen, setIsMenuOpen] = useState(false);
+
+  // 마운트 시 대시보드 개요 데이터를 불러온다.
+  useEffect(() => {
+    let cancelled = false;
+
+    const load = async () => {
+      try {
+        setStatus("loading");
+        setErrorMessage(null);
+
+        const res = await fetch("/api/dashboard/overview");
+
+        if (!res.ok) {
+          if (cancelled) return;
+
+          if (res.status === 401) {
+            setStatus("error");
+            setErrorMessage("대시보드를 보려면 로그인이 필요합니다. 다시 로그인해 주세요.");
+            router.push("/login");
+            return;
+          }
+
+          setStatus("error");
+          setErrorMessage("대시보드 데이터를 불러오는 중 오류가 발생했습니다. 잠시 후 다시 시도해 주세요.");
+          return;
+        }
+
+        const data = (await res.json()) as {
+          summaryStats: SummaryStats;
+          projectStats: ProjectStatsItem[];
+          dailySubmissions?: DailySubmissionItem[];
+        };
+
+        if (cancelled) return;
+
+        setSummary(data.summaryStats ?? null);
+        setProjects(Array.isArray(data.projectStats) ? data.projectStats : []);
+        setDailySubmissions(
+          Array.isArray(data.dailySubmissions) ? data.dailySubmissions : [],
+        );
+        setStatus("idle");
+        setErrorMessage(null);
+      } catch {
+        if (!cancelled) {
+          setStatus("error");
+          setErrorMessage(
+            "대시보드 데이터를 불러오는 중 오류가 발생했습니다. 잠시 후 다시 시도해 주세요.",
+          );
+        }
+      }
+    };
+
+    void load();
+
+    return () => {
+      cancelled = true;
+    };
+  }, [router]);
+
+  const safeSummary: SummaryStats =
+    summary ?? {
+      totalProjects: 0,
+      totalSubmissions: 0,
+      todaySubmissions: 0,
+      last7DaysSubmissions: 0,
+    };
+
+  const handleLogout = async () => {
+    try {
+      const res = await fetch("/api/auth/logout", {
+        method: "POST",
+      });
+
+      if (!res.ok) {
+        return;
+      }
+
+      router.push("/login");
+    } catch {
+    }
+  };
+
+  const handleToggleTheme = () => {
+    if (typeof document === "undefined") {
+      return;
+    }
+
+    const root = document.documentElement;
+    if (!root) {
+      return;
+    }
+
+    root.classList.toggle("dark");
+  };
+
+  return (
+    <main className="min-h-screen flex flex-col bg-slate-100 text-slate-900 dark:bg-slate-950 dark:text-slate-50">
+      <header className="border-b border-slate-200 px-6 py-4 flex items-center justify-between bg-white/80 backdrop-blur dark:border-slate-800 dark:bg-slate-950/80">
+        <div>
+          <h1 className="text-2xl font-bold tracking-tight">대시보드</h1>
+          <p className="text-sm text-slate-500 mt-1 dark:text-slate-400">프로젝트와 폼 제출 현황을 한눈에 확인할 수 있는 요약 화면입니다.</p>
+        </div>
+        <div className="flex items-center gap-3 text-sm">
+          <nav className="inline-flex items-center gap-1 rounded-full border border-slate-200 bg-white/80 px-1.5 py-1 shadow-sm dark:border-slate-700 dark:bg-slate-900/80">
+            <Link
+              href="/dashboard"
+              aria-current="page"
+              className="inline-flex items-center gap-1 px-3 py-1.5 rounded-full text-sm font-semibold bg-sky-600 text-white shadow-sm hover:bg-sky-700"
+            >
+              <LayoutDashboard className="w-4 h-4" aria-hidden="true" />
+              <span>대시보드</span>
+            </Link>
+            <Link
+              href="/projects"
+              className="inline-flex items-center gap-1 px-3 py-1.5 rounded-full text-sm font-medium text-slate-700 hover:bg-slate-100 hover:text-sky-700 dark:text-slate-200 dark:hover:bg-slate-800 dark:hover:text-sky-200"
+            >
+              <FolderKanban className="w-4 h-4" aria-hidden="true" />
+              <span>프로젝트 목록</span>
+            </Link>
+            <Link
+              href="/projects/submissions"
+              className="inline-flex items-center gap-1 px-3 py-1.5 rounded-full text-sm font-medium text-emerald-700 hover:bg-emerald-50 hover:text-emerald-800 dark:text-emerald-200 dark:hover:bg-emerald-900/60 dark:hover:text-emerald-100"
+            >
+              <ListChecks className="w-4 h-4" aria-hidden="true" />
+              <span>전체 제출 내역</span>
+            </Link>
+          </nav>
+          <button
+            type="button"
+            className="inline-flex items-center gap-1 rounded-full border border-slate-300 bg-white/80 px-3 py-1.5 text-xs font-medium text-slate-700 hover:bg-slate-100 dark:border-slate-700 dark:bg-slate-900 dark:text-slate-200 dark:hover:bg-slate-800"
+            onClick={handleToggleTheme}
+          >
+            <SunMoon className="w-4 h-4" aria-hidden="true" />
+            <span>테마 전환</span>
+          </button>
+          <div className="relative">
+            <button
+              type="button"
+              className="inline-flex items-center gap-1 rounded-full border border-slate-300 bg-white/80 px-3 py-1.5 text-xs font-medium text-slate-700 hover:bg-slate-100 dark:border-slate-700 dark:bg-slate-900 dark:text-slate-200 dark:hover:bg-slate-800"
+              onClick={() => {
+                setIsMenuOpen((prev) => !prev);
+              }}
+            >
+              메뉴
+            </button>
+            {isMenuOpen && (
+              <div className="absolute right-0 mt-1 w-32 rounded border border-slate-200 bg-white shadow-lg z-20 dark:border-slate-700 dark:bg-slate-900/95">
+                <button
+                  type="button"
+                  className="w-full px-3 py-2 text-left text-xs text-slate-700 hover:bg-slate-100 dark:text-slate-200 dark:hover:bg-slate-800"
+                  onClick={() => {
+                    setIsMenuOpen(false);
+                    void handleLogout();
+                  }}
+                >
+                  로그아웃
+                </button>
+              </div>
+            )}
+          </div>
+        </div>
+      </header>
+
+      <section className="flex-1 px-6 py-4 space-y-4 overflow-auto bg-slate-50/60 dark:bg-transparent">
+        {status === "error" && errorMessage && (
+          <p className="text-xs text-red-500 dark:text-red-300">{errorMessage}</p>
+        )}
+
+        {status === "loading" && (
+          <p className="text-xs text-slate-400">대시보드 데이터를 불러오는 중입니다...</p>
+        )}
+
+        {/* 상단 요약 위젯 영역 */}
+        <div className="grid grid-cols-2 md:grid-cols-4 gap-3 text-xs">
+          <div
+            data-testid="dashboard-summary-total-projects"
+            className="rounded-xl border border-slate-200 bg-white/80 px-4 py-3 flex flex-col gap-1 shadow-sm dark:border-slate-800 dark:bg-slate-900/70"
+          >
+            <span className="text-[11px] font-medium text-slate-500 dark:text-slate-400">프로젝트 수</span>
+            <span className="text-2xl font-bold tracking-tight">{safeSummary.totalProjects}</span>
+          </div>
+
+          <div
+            data-testid="dashboard-summary-total-submissions"
+            className="rounded-xl border border-slate-200 bg-white/80 px-4 py-3 flex flex-col gap-1 shadow-sm dark:border-slate-800 dark:bg-slate-900/70"
+          >
+            <span className="text-[11px] font-medium text-slate-500 dark:text-slate-400">전체 폼 제출 수</span>
+            <span className="text-2xl font-bold tracking-tight">{safeSummary.totalSubmissions}</span>
+          </div>
+
+          <div
+            data-testid="dashboard-summary-today-submissions"
+            className="rounded-xl border border-slate-200 bg-white/80 px-4 py-3 flex flex-col gap-1 shadow-sm dark:border-slate-800 dark:bg-slate-900/70"
+          >
+            <span className="text-[11px] font-medium text-slate-500 dark:text-slate-400">오늘 제출 수</span>
+            <span className="text-2xl font-bold tracking-tight">{safeSummary.todaySubmissions}</span>
+          </div>
+
+          <div
+            data-testid="dashboard-summary-last7days-submissions"
+            className="rounded-xl border border-slate-200 bg-white/80 px-4 py-3 flex flex-col gap-1 shadow-sm dark:border-slate-800 dark:bg-slate-900/70"
+          >
+            <span className="text-[11px] font-medium text-slate-500 dark:text-slate-400">최근 7일 제출 수</span>
+            <span className="text-2xl font-bold tracking-tight">{safeSummary.last7DaysSubmissions}</span>
+          </div>
+        </div>
+
+        {/* 일별 제출 수 간단 그래프 영역 */}
+        <div
+          data-testid="dashboard-daily-chart"
+          className="mt-2 rounded-xl border border-slate-200 bg-white/80 px-4 py-3 shadow-sm dark:border-slate-800 dark:bg-slate-900/70"
+        >
+          <div className="flex items-baseline justify-between mb-2">
+            <h2 className="text-sm font-semibold text-slate-800 dark:text-slate-200">최근 제출 추이 (일별)</h2>
+            <span className="text-[10px] text-slate-500 dark:text-slate-500">최근 활동이 있는 날짜만 표시됩니다.</span>
+          </div>
+
+          {dailySubmissions.length === 0 ? (
+            <p className="text-[11px] text-slate-500 dark:text-slate-400">아직 일별 제출 내역이 없습니다.</p>
+          ) : (
+            <div className="flex items-end gap-2 text-[10px]">
+              {dailySubmissions.map((item) => (
+                <div
+                  key={item.date}
+                  data-testid="dashboard-daily-chart-bar"
+                  className="flex flex-col items-center gap-1"
+                >
+                  <div
+                    className="w-6 rounded-t bg-emerald-500/80"
+                    style={{ height: `${Math.max(8, item.count * 12)}px` }}
+                  />
+                  <span className="text-slate-700 font-semibold dark:text-slate-300">{item.count}</span>
+                  <span className="text-slate-500 dark:text-slate-500">{item.date}</span>
+                </div>
+              ))}
+            </div>
+          )}
+        </div>
+
+        {/* 프로젝트 카드 리스트 영역 */}
+        <div className="mt-2">
+          <h2 className="text-base font-semibold mb-2 text-slate-800 dark:text-slate-100">프로젝트별 제출 현황</h2>
+
+          {projects.length === 0 && status === "idle" && !errorMessage && (
+            <p className="text-xs text-slate-500 dark:text-slate-400">아직 생성된 프로젝트가 없거나 제출 내역이 없습니다.</p>
+          )}
+
+          {projects.length > 0 && (
+            <div className="grid gap-3 md:grid-cols-2 lg:grid-cols-3">
+              {projects.map((project) => {
+                const lastSubmitted = project.lastSubmissionAt
+                  ? new Date(project.lastSubmissionAt).toLocaleString()
+                  : "제출 내역 없음";
+
+                return (
+                  <article
+                    key={project.projectId}
+                    data-testid="dashboard-project-card"
+                    className="rounded-xl border border-slate-200 bg-white/80 px-4 py-3 flex flex-col gap-1 shadow-sm dark:border-slate-800 dark:bg-slate-900/70"
+                  >
+                    <div className="flex items-baseline justify-between gap-2">
+                      <div>
+                        <h3 className="text-sm font-semibold text-slate-900 dark:text-slate-50">{project.title}</h3>
+                        <p className="text-[11px] text-slate-500 font-mono dark:text-slate-400">{project.slug}</p>
+                      </div>
+                      <span className="text-[10px] px-2 py-0.5 rounded-full border border-slate-300 bg-slate-50 text-slate-700 dark:border-slate-700 dark:bg-transparent dark:text-slate-300">
+                        {project.status}
+                      </span>
+                    </div>
+
+                    <div className="mt-1 flex items-center justify-between text-[11px] text-slate-700 dark:text-slate-300">
+                      <span>
+                        총 제출 <span className="font-semibold">{project.totalSubmissions}</span>건
+                      </span>
+                      <span className="text-slate-500 dark:text-slate-400">최근 제출: {lastSubmitted}</span>
+                    </div>
+
+                    <div className="mt-2 flex items-center gap-2 text-[11px]">
+                      <Link
+                        href={`/projects/${encodeURIComponent(project.slug)}/submissions`}
+                        className="text-emerald-700 hover:text-emerald-900 underline-offset-2 hover:underline dark:text-emerald-300 dark:hover:text-emerald-100"
+                      >
+                        폼 제출 내역 보기
+                      </Link>
+                      <Link
+                        href={`/p/${encodeURIComponent(project.slug)}`}
+                        className="text-sky-700 hover:text-sky-900 underline-offset-2 hover:underline dark:text-sky-300 dark:hover:text-sky-200"
+                      >
+                        퍼블릭 페이지 열기
+                      </Link>
+                    </div>
+                  </article>
+                );
+              })}
+            </div>
+          )}
+        </div>
+      </section>
+    </main>
+  );
+}
diff --git a/src/app/layout.tsx b/src/app/layout.tsx
index 212ebf7..f7e850b 100644
--- a/src/app/layout.tsx
+++ b/src/app/layout.tsx
@@ -10,7 +10,7 @@ export const metadata = {
 export default function RootLayout({ children }: { children: ReactNode }) {
   return (
     <html lang="ko" suppressHydrationWarning>
-      <body className="min-h-screen bg-slate-950 text-slate-50">
+      <body className="min-h-screen bg-slate-50 text-slate-900 dark:bg-slate-950 dark:text-slate-50">
         {children}
       </body>
     </html>
diff --git a/src/app/login/page.tsx b/src/app/login/page.tsx
index 9e83cf2..46517aa 100644
--- a/src/app/login/page.tsx
+++ b/src/app/login/page.tsx
@@ -23,7 +23,7 @@ export default function LoginPage() {
       try {
         const res = await fetch("/api/auth/me");
         if (!cancelled && res.ok) {
-          router.push("/projects");
+          router.push("/dashboard");
         }
       } catch {
         // ignore
@@ -61,8 +61,8 @@ export default function LoginPage() {
         return;
       }
 
-      // 성공 시에는 /projects 로 이동한다.
-      router.push("/projects");
+      // 성공 시에는 /dashboard 로 이동한다.
+      router.push("/dashboard");
     } catch {
       setError("네트워크 오류가 발생했습니다. 잠시 후 다시 시도해 주세요.");
     } finally {
diff --git a/src/app/page.tsx b/src/app/page.tsx
index 061b6ee..c1680e8 100644
--- a/src/app/page.tsx
+++ b/src/app/page.tsx
@@ -1,12 +1,19 @@
+"use client";
+
+import { useEffect } from "react";
+import { useRouter } from "next/navigation";
+
 export default function HomePage() {
+  const router = useRouter();
+
+  useEffect(() => {
+    // 메인 페이지 진입 시 대시보드로 안내한다.
+    router.push("/dashboard");
+  }, [router]);
+
   return (
     <main className="flex min-h-screen items-center justify-center">
-      <div className="text-center space-y-4">
-        <h1 className="text-3xl font-bold">Page Builder MVP</h1>
-        <p className="text-sm text-slate-400">
-          에디터와 블록 시스템을 이 위에서 TDD로 구현합니다.
-        </p>
-      </div>
+      <p className="text-sm text-slate-400">대시보드로 이동 중입니다...</p>
     </main>
   );
 }
diff --git a/src/app/projects/page.tsx b/src/app/projects/page.tsx
index 0b76404..3326055 100644
--- a/src/app/projects/page.tsx
+++ b/src/app/projects/page.tsx
@@ -11,6 +11,9 @@ import {
   ListChecks,
   ChevronLeft,
   ChevronRight,
+  LayoutDashboard,
+  FolderKanban,
+  SunMoon,
 } from "lucide-react";
 
 interface ProjectListItem {
@@ -29,6 +32,7 @@ export default function ProjectsPage() {
   const [errorMessage, setErrorMessage] = useState<string | null>(null);
   const [selectedSlugs, setSelectedSlugs] = useState<string[]>([]);
   const [currentPage, setCurrentPage] = useState(1);
+  const [isMenuOpen, setIsMenuOpen] = useState(false);
   const pageSize = 10;
 
   useEffect(() => {
@@ -179,7 +183,7 @@ export default function ProjectsPage() {
           window.localStorage.removeItem(`pb:autosave:${slug}`);
         }
       }
-
+  
       if (okSlugs.length !== slugs.length) {
         setStatus("error");
         setErrorMessage(
@@ -195,51 +199,101 @@ export default function ProjectsPage() {
     }
   };
 
+  const handleToggleTheme = () => {
+    if (typeof document === "undefined") {
+      return;
+    }
+
+    const root = document.documentElement;
+    if (!root) {
+      return;
+    }
+
+    root.classList.toggle("dark");
+  };
+
   return (
-    <main className="min-h-screen flex flex-col bg-slate-950 text-slate-50">
-      <header className="border-b border-slate-800 px-6 py-4 flex items-center justify-between bg-slate-950/80 backdrop-blur">
+    <main className="min-h-screen flex flex-col bg-slate-100 text-slate-900 dark:bg-slate-950 dark:text-slate-50">
+      <header className="border-b border-slate-200 px-6 py-4 flex items-center justify-between bg-white/80 backdrop-blur dark:border-slate-800 dark:bg-slate-950/80">
         <div>
-          <h1 className="text-xl font-semibold">프로젝트 목록</h1>
-          <p className="text-xs text-slate-400">저장된 프로젝트들을 한 눈에 볼 수 있는 목록</p>
+          <h1 className="text-2xl font-bold tracking-tight">프로젝트 목록</h1>
+          <p className="text-sm text-slate-500 dark:text-slate-400">저장된 프로젝트들을 한 눈에 볼 수 있는 목록</p>
         </div>
-        <div className="flex items-center gap-2 text-xs">
+        <div className="flex items-center gap-3 text-sm">
+          <nav className="inline-flex items-center gap-1 rounded-full border border-slate-200 bg-white/80 px-1.5 py-1 shadow-sm dark:border-slate-700 dark:bg-slate-900/80">
+            <Link
+              href="/dashboard"
+              className="inline-flex items-center gap-1 px-3 py-1.5 rounded-full text-sm font-medium text-slate-700 hover:bg-slate-100 hover:text-sky-700 dark:text-slate-200 dark:hover:bg-slate-800 dark:hover:text-sky-200"
+            >
+              <LayoutDashboard className="w-4 h-4" aria-hidden="true" />
+              <span>대시보드</span>
+            </Link>
+            <Link
+              href="/projects"
+              aria-current="page"
+              className="inline-flex items-center gap-1 px-3 py-1.5 rounded-full text-sm font-semibold bg-sky-600 text-white shadow-sm hover:bg-sky-700"
+            >
+              <FolderKanban className="w-4 h-4" aria-hidden="true" />
+              <span>프로젝트 목록</span>
+            </Link>
+            <Link
+              href="/projects/submissions"
+              className="inline-flex items-center gap-1 px-3 py-1.5 rounded-full text-sm font-medium text-emerald-700 hover:bg-emerald-50 hover:text-emerald-800 dark:text-emerald-200 dark:hover:bg-emerald-900/60 dark:hover:text-emerald-100"
+            >
+              <ListChecks className="w-4 h-4" aria-hidden="true" />
+              <span>전체 제출 내역</span>
+            </Link>
+          </nav>
           <button
             type="button"
-            className="inline-flex items-center gap-1 rounded border border-slate-700 px-3 py-1 text-slate-200 hover:bg-slate-900"
-            onClick={() => {
-              void handleLogout();
-            }}
+            className="inline-flex items-center gap-1 rounded-full border border-slate-300 bg-white/80 px-3 py-1.5 text-xs font-medium text-slate-700 hover:bg-slate-100 dark:border-slate-700 dark:bg-slate-900 dark:text-slate-200 dark:hover:bg-slate-800"
+            onClick={handleToggleTheme}
           >
-            로그아웃
+            <SunMoon className="w-4 h-4" aria-hidden="true" />
+            <span>테마 전환</span>
           </button>
-          <Link
-            href="/projects/submissions"
-            className="inline-flex items-center gap-1 rounded border border-emerald-700 bg-emerald-950 px-3 py-1 text-emerald-100 hover:bg-emerald-900 shadow-sm"
-          >
-            <ListChecks className="w-4 h-4" aria-hidden="true" />
-            <span>전체 제출 내역</span>
-          </Link>
-          <Link
-            href="/editor?new=1"
-            className="inline-flex items-center gap-1 rounded border border-sky-700 bg-sky-950 px-3 py-1 text-sky-100 hover:bg-sky-900 shadow-sm"
-          >
-            <FilePlus2 className="w-4 h-4" aria-hidden="true" />
-            <span>새 프로젝트 만들기</span>
-          </Link>
+          <div className="relative">
+            <button
+              type="button"
+              className="inline-flex items-center gap-1 rounded-full border border-slate-300 bg-white/80 px-3 py-1.5 text-xs font-medium text-slate-700 hover:bg-slate-100 dark:border-slate-700 dark:bg-slate-900 dark:text-slate-200 dark:hover:bg-slate-800"
+              onClick={() => {
+                setIsMenuOpen((prev) => !prev);
+              }}
+            >
+              메뉴
+            </button>
+            {isMenuOpen && (
+              <div className="absolute right-0 mt-1 w-32 rounded border border-slate-200 bg-white shadow-lg z-20 dark:border-slate-700 dark:bg-slate-900/95">
+                <button
+                  type="button"
+                  className="w-full px-3 py-2 text-left text-xs text-slate-700 hover:bg-slate-100 dark:text-slate-200 dark:hover:bg-slate-800"
+                  onClick={() => {
+                    setIsMenuOpen(false);
+                    void handleLogout();
+                  }}
+                >
+                  로그아웃
+                </button>
+              </div>
+            )}
+          </div>
         </div>
       </header>
-      <section className="flex-1 px-6 py-4 overflow-auto">
+      <section className="flex-1 px-6 py-4 overflow-auto bg-slate-50/60 dark:bg-transparent">
         {status === "error" && (
-          <p className="text-xs text-red-300 mb-3">
+          <p className="text-xs text-red-500 mb-3 dark:text-red-300">
             {errorMessage ?? "프로젝트 목록을 불러오는 중 오류가 발생했습니다. 잠시 후 다시 시도해 주세요."}
           </p>
         )}
         {projects.length === 0 && status === "idle" && (
-          <p className="text-xs text-slate-400">아직 저장된 프로젝트가 없습니다. 에디터에서 프로젝트를 저장해 보세요.</p>
+          <p className="text-xs text-slate-500 dark:text-slate-400">아직 저장된 프로젝트가 없습니다. 에디터에서 프로젝트를 저장해 보세요.</p>
         )}
         {projects.length > 0 && (
           <>
-            <div className="flex items-center justify-between mb-2 text-[11px] text-slate-300">
+            <div
+              data-testid="projects-toolbar"
+              className="flex items-center justify-between mb-2 text-[11px] text-slate-300"
+            >
               <div className="inline-flex items-center gap-2">
                 <span className="inline-flex items-center gap-1 px-2 py-1 rounded-full bg-slate-900/70 border border-slate-700">
                   <ListChecks className="w-3 h-3 text-slate-400" aria-hidden="true" />
@@ -248,17 +302,26 @@ export default function ProjectsPage() {
                   </span>
                 </span>
               </div>
-              <button
-                type="button"
-                className="inline-flex items-center gap-1 rounded border border-red-700 px-2 py-1 text-red-200 hover:bg-red-900/40 disabled:opacity-40 disabled:cursor-not-allowed"
-                disabled={selectedSlugs.length === 0}
-                onClick={() => {
-                  void handleBulkDelete();
-                }}
-              >
-                <Trash2 className="w-3 h-3" aria-hidden="true" />
-                <span>선택 삭제</span>
-              </button>
+              <div className="flex items-center gap-2">
+                <button
+                  type="button"
+                  className="inline-flex items-center gap-1 rounded border border-red-700 px-2 py-1 text-red-200 hover:bg-red-900/40 disabled:opacity-40 disabled:cursor-not-allowed"
+                  disabled={selectedSlugs.length === 0}
+                  onClick={() => {
+                    void handleBulkDelete();
+                  }}
+                >
+                  <Trash2 className="w-3 h-3" aria-hidden="true" />
+                  <span>선택 삭제</span>
+                </button>
+                <Link
+                  href="/editor?new=1"
+                  className="inline-flex items-center gap-1 rounded border border-sky-700 bg-sky-950 px-2 py-1 text-sky-100 hover:bg-sky-900 shadow-sm"
+                >
+                  <FilePlus2 className="w-3 h-3" aria-hidden="true" />
+                  <span>새 프로젝트 만들기</span>
+                </Link>
+              </div>
             </div>
             <table className="w-full text-xs text-left border-collapse mt-2">
               <thead>
diff --git a/src/app/projects/submissions/page.tsx b/src/app/projects/submissions/page.tsx
index 4b3a56d..9f2f468 100644
--- a/src/app/projects/submissions/page.tsx
+++ b/src/app/projects/submissions/page.tsx
@@ -2,6 +2,8 @@
 
 import { useEffect, useState } from "react";
 import { useRouter } from "next/navigation";
+import Link from "next/link";
+import { FolderKanban, LayoutDashboard, ListChecks, SunMoon } from "lucide-react";
 
 interface SubmissionItem {
   id: string;
@@ -18,6 +20,7 @@ export default function AllProjectSubmissionsPage() {
   const [submissions, setSubmissions] = useState<SubmissionItem[]>([]);
   const [status, setStatus] = useState<PageStatus>("idle");
   const [errorMessage, setErrorMessage] = useState<string | null>(null);
+  const [isMenuOpen, setIsMenuOpen] = useState(false);
 
   useEffect(() => {
     let cancelled = false;
@@ -82,39 +85,113 @@ export default function AllProjectSubmissionsPage() {
       .join("\n");
   };
 
+  const handleLogout = async () => {
+    try {
+      const res = await fetch("/api/auth/logout", {
+        method: "POST",
+      });
+
+      if (!res.ok) {
+        setErrorMessage("로그아웃 중 오류가 발생했습니다. 잠시 후 다시 시도해 주세요.");
+        return;
+      }
+
+      router.push("/login");
+    } catch {
+      setErrorMessage("로그아웃 중 오류가 발생했습니다. 잠시 후 다시 시도해 주세요.");
+    }
+  };
+
   return (
-    <main className="min-h-screen flex flex-col bg-slate-950 text-slate-50">
-      <header className="border-b border-slate-800 px-6 py-4 flex items-center justify-between bg-slate-950/80 backdrop-blur">
+    <main className="min-h-screen flex flex-col bg-slate-100 text-slate-900 dark:bg-slate-950 dark:text-slate-50">
+      <header className="border-b border-slate-200 px-6 py-4 flex items-center justify-between bg-white/80 backdrop-blur dark:border-slate-800 dark:bg-slate-950/80">
         <div>
-          <h1 className="text-xl font-semibold">전체 폼 제출 내역</h1>
-          <p className="text-xs text-slate-400">로그인한 계정의 모든 프로젝트에 대한 폼 제출 데이터를 확인할 수 있습니다.</p>
+          <h1 className="text-2xl font-bold tracking-tight">전체 폼 제출 내역</h1>
+          <p className="text-sm text-slate-500 dark:text-slate-400">로그인한 계정의 모든 프로젝트에 대한 폼 제출 데이터를 확인할 수 있습니다.</p>
         </div>
-        <div className="text-xs text-slate-300 flex flex-col items-end gap-1">
-          <a
-            href="/projects"
-            role="link"
-            className="text-[11px] text-sky-400 hover:text-sky-300 underline-offset-2 hover:underline"
-            onClick={(event) => {
-              event.preventDefault();
-              router.push("/projects");
+        <div className="flex items-center gap-3 text-sm">
+          <nav className="inline-flex items-center gap-1 rounded-full border border-slate-200 bg-white/80 px-1.5 py-1 shadow-sm dark:border-slate-700 dark:bg-slate-900/80">
+            <Link
+              href="/dashboard"
+              className="inline-flex items-center gap-1 px-3 py-1.5 rounded-full text-sm font-medium text-slate-700 hover:bg-slate-100 hover:text-sky-700 dark:text-slate-200 dark:hover:bg-slate-800 dark:hover:text-sky-200"
+            >
+              <LayoutDashboard className="w-4 h-4" aria-hidden="true" />
+              <span>대시보드</span>
+            </Link>
+            <Link
+              href="/projects"
+              className="inline-flex items-center gap-1 px-3 py-1.5 rounded-full text-sm font-medium text-slate-700 hover:bg-slate-100 hover:text-sky-700 dark:text-slate-200 dark:hover:bg-slate-800 dark:hover:text-sky-200"
+            >
+              <FolderKanban className="w-4 h-4" aria-hidden="true" />
+              <span>프로젝트 목록</span>
+            </Link>
+            <Link
+              href="/projects/submissions"
+              aria-current="page"
+              className="inline-flex items-center gap-1 px-3 py-1.5 rounded-full text-sm font-semibold bg-emerald-600 text-white shadow-sm hover:bg-emerald-700"
+            >
+              <ListChecks className="w-4 h-4" aria-hidden="true" />
+              <span>전체 제출 내역</span>
+            </Link>
+          </nav>
+          <button
+            type="button"
+            className="inline-flex items-center gap-1 rounded-full border border-slate-300 bg-white/80 px-3 py-1.5 text-xs font-medium text-slate-700 hover:bg-slate-100 dark:border-slate-700 dark:bg-slate-900 dark:text-slate-200 dark:hover:bg-slate-800"
+            onClick={() => {
+              if (typeof document === "undefined") {
+                return;
+              }
+
+              const root = document.documentElement;
+              if (!root) {
+                return;
+              }
+
+              root.classList.toggle("dark");
             }}
           >
-            프로젝트 목록
-          </a>
+            <SunMoon className="w-4 h-4" aria-hidden="true" />
+            <span>테마 전환</span>
+          </button>
+          <div className="relative">
+            <button
+              type="button"
+              className="inline-flex items-center gap-1 rounded-full border border-slate-300 bg-white/80 px-3 py-1.5 text-xs font-medium text-slate-700 hover:bg-slate-100 dark:border-slate-700 dark:bg-slate-900 dark:text-slate-200 dark:hover:bg-slate-800"
+              onClick={() => {
+                setIsMenuOpen((prev) => !prev);
+              }}
+            >
+              메뉴
+            </button>
+            {isMenuOpen && (
+              <div className="absolute right-0 mt-1 w-32 rounded border border-slate-200 bg-white shadow-lg z-20 dark:border-slate-700 dark:bg-slate-900/95">
+                <button
+                  type="button"
+                  className="w-full px-3 py-2 text-left text-xs text-slate-700 hover:bg-slate-100 dark:text-slate-200 dark:hover:bg-slate-800"
+                  onClick={() => {
+                    setIsMenuOpen(false);
+                    void handleLogout();
+                  }}
+                >
+                  로그아웃
+                </button>
+              </div>
+            )}
+          </div>
         </div>
       </header>
 
-      <section className="flex-1 px-6 py-4 overflow-auto">
+      <section className="flex-1 px-6 py-4 overflow-auto bg-slate-50/60 dark:bg-transparent">
         {status === "error" && errorMessage && (
-          <p className="text-xs text-red-300 mb-3">{errorMessage}</p>
+          <p className="text-xs text-red-500 mb-3 dark:text-red-300">{errorMessage}</p>
         )}
 
         {status === "loading" && (
-          <p className="text-xs text-slate-400 mb-3">폼 제출 내역을 불러오는 중입니다...</p>
+          <p className="text-xs text-slate-500 mb-3 dark:text-slate-400">폼 제출 내역을 불러오는 중입니다...</p>
         )}
 
         {submissions.length === 0 && status === "idle" && !errorMessage && (
-          <p className="text-xs text-slate-400">아직 수집된 폼 제출 내역이 없습니다.</p>
+          <p className="text-xs text-slate-500 dark:text-slate-400">아직 수집된 폼 제출 내역이 없습니다.</p>
         )}
 
         {submissions.length > 0 && (
diff --git a/src/app/signup/page.tsx b/src/app/signup/page.tsx
index 298537e..d8e4e85 100644
--- a/src/app/signup/page.tsx
+++ b/src/app/signup/page.tsx
@@ -23,7 +23,7 @@ export default function SignupPage() {
       try {
         const res = await fetch("/api/auth/me");
         if (!cancelled && res.ok) {
-          router.push("/projects");
+          router.push("/dashboard");
         }
       } catch {
         // ignore
@@ -61,7 +61,7 @@ export default function SignupPage() {
         return;
       }
 
-      router.push("/projects");
+      router.push("/dashboard");
     } catch {
       setError("네트워크 오류가 발생했습니다. 잠시 후 다시 시도해 주세요.");
     } finally {
diff --git a/tailwind.config.js b/tailwind.config.js
index 17953f3..effa170 100644
--- a/tailwind.config.js
+++ b/tailwind.config.js
@@ -1,5 +1,6 @@
 /** @type {import('tailwindcss').Config} */
 module.exports = {
+  darkMode: "class",
   content: [
     "./src/app/**/*.{ts,tsx}",
     "./src/components/**/*.{ts,tsx}",
diff --git a/tests/api/dashboard.spec.ts b/tests/api/dashboard.spec.ts
new file mode 100644
index 0000000..293c650
--- /dev/null
+++ b/tests/api/dashboard.spec.ts
@@ -0,0 +1,220 @@
+import "dotenv/config";
+import { describe, it, expect, beforeEach, vi } from "vitest";
+import { signAccessToken } from "@/features/auth/authCrypto";
+
+// /api/dashboard/overview TDD
+// - 로그인한 사용자가 자신의 프로젝트/폼 제출 통계를 조회할 수 있어야 한다.
+// - 로그인하지 않은 경우 401 을 반환해야 한다.
+// - 프로젝트/제출 내역이 없는 경우 0 값과 빈 배열을 반환해야 한다.
+
+const BASE_URL = "http://localhost";
+
+const inMemoryProjects: any[] = [];
+const inMemoryFormSubmissions: any[] = [];
+
+vi.mock("@prisma/client", () => {
+  class PrismaClientMock {
+    project = {
+      findMany: async (args: any = {}) => {
+        const where = args.where ?? {};
+
+        let items = [...inMemoryProjects];
+
+        if (where.userId) {
+          items = items.filter((p) => p.userId === where.userId);
+        }
+
+        return items;
+      },
+    };
+
+    formSubmission = {
+      findMany: async (args: any = {}) => {
+        const where = args.where ?? {};
+
+        let items = [...inMemoryFormSubmissions];
+
+        if (where.userId) {
+          items = items.filter((s) => s.userId === where.userId);
+        }
+
+        return items;
+      },
+    };
+  }
+
+  return { PrismaClient: PrismaClientMock };
+});
+
+const TEST_USER = { id: "user-1", email: "dashboard@example.com", tokenVersion: 1 };
+const OTHER_USER = { id: "user-2", email: "dashboard2@example.com", tokenVersion: 1 };
+
+async function buildAuthHeadersFor(user: { id: string; email: string; tokenVersion: number }) {
+  const token = await signAccessToken(user);
+  return { cookie: `pb_access=${token}` };
+}
+
+async function buildAuthHeaders() {
+  return buildAuthHeadersFor(TEST_USER);
+}
+
+beforeEach(() => {
+  process.env.AUTH_JWT_SECRET = "test-jwt-secret-dashboard";
+  inMemoryProjects.length = 0;
+  inMemoryFormSubmissions.length = 0;
+});
+
+describe("/api/dashboard/overview", () => {
+  it("로그인한 사용자가 자신의 프로젝트/폼 제출 통계를 조회할 수 있어야 한다", async () => {
+    const project1 = {
+      id: "proj-1",
+      userId: TEST_USER.id,
+      title: "테스트 프로젝트 A",
+      slug: "test-project-a",
+      status: "DRAFT",
+    };
+
+    const project2 = {
+      id: "proj-2",
+      userId: TEST_USER.id,
+      title: "테스트 프로젝트 B",
+      slug: "test-project-b",
+      status: "PUBLISHED",
+    };
+
+    const projectOther = {
+      id: "proj-3",
+      userId: OTHER_USER.id,
+      title: "다른 유저 프로젝트",
+      slug: "other-project",
+      status: "DRAFT",
+    };
+
+    inMemoryProjects.push(project1, project2, projectOther);
+
+    const now = new Date("2025-01-03T12:00:00.000Z");
+    const yesterday = new Date("2025-01-02T12:00:00.000Z");
+    const eightDaysAgo = new Date("2024-12-26T12:00:00.000Z");
+
+    inMemoryFormSubmissions.push(
+      {
+        id: "sub-1",
+        projectId: project1.id,
+        projectSlug: project1.slug,
+        userId: TEST_USER.id,
+        createdAt: now,
+        payloadJson: { message: "A-1" },
+        sensitiveEnc: undefined,
+        metaJson: null,
+      },
+      {
+        id: "sub-2",
+        projectId: project1.id,
+        projectSlug: project1.slug,
+        userId: TEST_USER.id,
+        createdAt: yesterday,
+        payloadJson: { message: "A-2" },
+        sensitiveEnc: undefined,
+        metaJson: null,
+      },
+      {
+        id: "sub-3",
+        projectId: project2.id,
+        projectSlug: project2.slug,
+        userId: TEST_USER.id,
+        createdAt: eightDaysAgo,
+        payloadJson: { message: "B-1" },
+        sensitiveEnc: undefined,
+        metaJson: null,
+      },
+      {
+        id: "sub-4",
+        projectId: projectOther.id,
+        projectSlug: projectOther.slug,
+        userId: OTHER_USER.id,
+        createdAt: now,
+        payloadJson: { message: "OTHER" },
+        sensitiveEnc: undefined,
+        metaJson: null,
+      },
+    );
+
+    const { GET: getDashboardOverview } = await import("@/app/api/dashboard/overview/route");
+
+    const headers = await buildAuthHeaders();
+
+    const res = await getDashboardOverview(
+      new Request(`${BASE_URL}/api/dashboard/overview`, {
+        headers,
+      }),
+    );
+
+    expect(res.status).toBe(200);
+
+    const json = (await res.json()) as any;
+
+    expect(json.summaryStats.totalProjects).toBe(2);
+    expect(json.summaryStats.totalSubmissions).toBe(3);
+
+    expect(Array.isArray(json.projectStats)).toBe(true);
+    expect(json.projectStats.length).toBe(2);
+
+    const proj1Stats = json.projectStats.find((p: any) => p.slug === project1.slug);
+    const proj2Stats = json.projectStats.find((p: any) => p.slug === project2.slug);
+
+    expect(proj1Stats).toBeTruthy();
+    expect(proj1Stats.totalSubmissions).toBe(2);
+    expect(proj1Stats.lastSubmissionAt).toBe(now.toISOString());
+
+    expect(proj2Stats).toBeTruthy();
+    expect(proj2Stats.totalSubmissions).toBe(1);
+    expect(proj2Stats.lastSubmissionAt).toBe(eightDaysAgo.toISOString());
+
+    const daily = (json as any).dailySubmissions;
+
+    expect(Array.isArray(daily)).toBe(true);
+    expect(daily.length).toBe(3);
+
+    const dates = daily.map((item: any) => item.date).sort();
+    expect(dates).toEqual(["2024-12-26", "2025-01-02", "2025-01-03"]);
+
+    const countsByDate = (daily as any[]).reduce((acc: Record<string, number>, item: any) => {
+      acc[item.date] = item.count;
+      return acc;
+    }, {} as Record<string, number>);
+
+    expect(countsByDate["2025-01-03"]).toBe(1);
+    expect(countsByDate["2025-01-02"]).toBe(1);
+    expect(countsByDate["2024-12-26"]).toBe(1);
+  });
+
+  it("로그인하지 않은 경우 401 을 반환해야 한다", async () => {
+    const { GET: getDashboardOverview } = await import("@/app/api/dashboard/overview/route");
+
+    const res = await getDashboardOverview(
+      new Request(`${BASE_URL}/api/dashboard/overview`),
+    );
+
+    expect(res.status).toBe(401);
+  });
+
+  it("프로젝트와 제출 내역이 없는 경우 0 값과 빈 배열을 반환해야 한다", async () => {
+    const { GET: getDashboardOverview } = await import("@/app/api/dashboard/overview/route");
+
+    const headers = await buildAuthHeaders();
+
+    const res = await getDashboardOverview(
+      new Request(`${BASE_URL}/api/dashboard/overview`, {
+        headers,
+      }),
+    );
+
+    expect(res.status).toBe(200);
+
+    const json = (await res.json()) as any;
+    expect(json.summaryStats.totalProjects).toBe(0);
+    expect(json.summaryStats.totalSubmissions).toBe(0);
+    expect(Array.isArray(json.projectStats)).toBe(true);
+    expect(json.projectStats.length).toBe(0);
+  });
+});
diff --git a/tests/e2e/auth.spec.ts b/tests/e2e/auth.spec.ts
index 6d79041..48d04ac 100644
--- a/tests/e2e/auth.spec.ts
+++ b/tests/e2e/auth.spec.ts
@@ -48,7 +48,7 @@ test("비로그인 사용자가 /preview 에 접근하면 /login 으로 리다
   await expect(page.getByRole("heading", { name: "로그인" })).toBeVisible();
 });
 
-test("회원가입 후에는 /projects, /editor, /preview 에 정상 접근할 수 있어야 한다", async ({ page }) => {
+test("회원가입 후에는 /dashboard, /editor, /preview 에 정상 접근할 수 있어야 한다", async ({ page }) => {
   const email = `e2e+${Date.now()}@example.com`;
   const password = "securePass1";
 
@@ -98,9 +98,9 @@ test("회원가입 후에는 /projects, /editor, /preview 에 정상 접근할 
   await page.getByLabel("비밀번호").fill(password);
   await page.getByRole("button", { name: "회원가입" }).click();
 
-  // /projects 로 이동했는지, 헤더가 보이는지 확인
-  await expect(page).toHaveURL(/\/projects/);
-  await expect(page.getByRole("heading", { name: "프로젝트 목록" })).toBeVisible();
+  // /dashboard 로 이동했는지, 헤더가 보이는지 확인
+  await expect(page).toHaveURL(/\/dashboard/);
+  await expect(page.getByRole("heading", { name: "대시보드" })).toBeVisible();
 
   // 2) /editor 접근 확인 – 로그인 페이지로 리다이렉트되면 안 된다.
   await page.goto("/editor");
diff --git a/tests/e2e/dashboard.spec.ts b/tests/e2e/dashboard.spec.ts
new file mode 100644
index 0000000..6953392
--- /dev/null
+++ b/tests/e2e/dashboard.spec.ts
@@ -0,0 +1,140 @@
+import { test, expect } from "@playwright/test";
+
+// 대시보드 E2E TDD
+// - 비로그인 사용자는 /dashboard 접근 시 /login 으로 리다이렉트되어야 한다.
+// - 로그인 사용자는 /dashboard 에서 요약 지표 + 프로젝트 카드 리스트를 볼 수 있어야 한다.
+// - 백엔드/DB 에 의존하지 않도록 /api/dashboard/overview 를 Playwright 라우팅으로 목킹한다.
+
+test("비로그인 사용자가 /dashboard 에 접근하면 /login 으로 리다이렉트되어야 한다", async ({ page }) => {
+  await page.route("**/api/dashboard/overview", async (route) => {
+    await route.fulfill({
+      status: 401,
+      contentType: "application/json",
+      body: JSON.stringify({ message: "로그인이 필요합니다." }),
+    });
+  });
+
+  await page.goto("/dashboard");
+
+  await expect(page.getByRole("heading", { name: "로그인" })).toBeVisible();
+});
+
+test("로그인 사용자가 /dashboard 에 접근하면 요약 지표와 프로젝트 카드 리스트, 일별 그래프를 볼 수 있어야 한다", async ({ page }) => {
+  await page.route("**/api/dashboard/overview", async (route) => {
+    await route.fulfill({
+      status: 200,
+      contentType: "application/json",
+      body: JSON.stringify({
+        summaryStats: {
+          totalProjects: 2,
+          totalSubmissions: 3,
+          todaySubmissions: 1,
+          last7DaysSubmissions: 3,
+        },
+        projectStats: [
+          {
+            projectId: "proj-1",
+            title: "테스트 프로젝트 A",
+            slug: "test-project-a",
+            status: "DRAFT",
+            totalSubmissions: 2,
+            lastSubmissionAt: "2025-01-02T12:00:00.000Z",
+          },
+          {
+            projectId: "proj-2",
+            title: "테스트 프로젝트 B",
+            slug: "test-project-b",
+            status: "PUBLISHED",
+            totalSubmissions: 1,
+            lastSubmissionAt: "2025-01-03T09:30:00.000Z",
+          },
+        ],
+        dailySubmissions: [
+          { date: "2024-12-26", count: 1 },
+          { date: "2025-01-02", count: 1 },
+          { date: "2025-01-03", count: 1 },
+        ],
+      }),
+    });
+  });
+
+  await page.goto("/dashboard");
+
+  // 대시보드 헤더가 보여야 한다.
+  await expect(page.getByRole("heading", { name: "대시보드" })).toBeVisible();
+
+  // 상단 헤더 내비게이션이 보여야 한다.
+  const dashboardLink = page.getByRole("link", { name: "대시보드" });
+  await expect(dashboardLink).toBeVisible();
+
+  const projectsLink = page.getByRole("link", { name: "프로젝트 목록" });
+  await expect(projectsLink).toBeVisible();
+
+  const submissionsLink = page.getByRole("link", { name: "전체 제출 내역" });
+  await expect(submissionsLink).toBeVisible();
+
+  const menuButton = page.getByRole("button", { name: "메뉴" });
+  await expect(menuButton).toBeVisible();
+
+  // 상단 요약 위젯의 지표들이 기대 값으로 렌더되어야 한다.
+  const totalProjects = page.getByTestId("dashboard-summary-total-projects");
+  await expect(totalProjects).toContainText("2");
+
+  const totalSubmissions = page.getByTestId("dashboard-summary-total-submissions");
+  await expect(totalSubmissions).toContainText("3");
+
+  const todaySubmissions = page.getByTestId("dashboard-summary-today-submissions");
+  await expect(todaySubmissions).toContainText("1");
+
+  const last7DaysSubmissions = page.getByTestId(
+    "dashboard-summary-last7days-submissions",
+  );
+  await expect(last7DaysSubmissions).toContainText("3");
+
+  // 프로젝트 카드 리스트가 2개 렌더링되어야 한다.
+  const projectCards = page.getByTestId("dashboard-project-card");
+  await expect(projectCards).toHaveCount(2);
+
+  await expect(projectCards.nth(0)).toContainText("테스트 프로젝트 A");
+  await expect(projectCards.nth(0)).toContainText("test-project-a");
+  await expect(projectCards.nth(0)).toContainText("2");
+
+  await expect(projectCards.nth(1)).toContainText("테스트 프로젝트 B");
+  await expect(projectCards.nth(1)).toContainText("test-project-b");
+  await expect(projectCards.nth(1)).toContainText("1");
+
+  // 일별 제출 수 그래프가 렌더링되어야 한다.
+  const dailyChart = page.getByTestId("dashboard-daily-chart");
+  await expect(dailyChart).toBeVisible();
+
+  const dailyBars = page.getByTestId("dashboard-daily-chart-bar");
+  await expect(dailyBars).toHaveCount(3);
+  
+  // 메뉴 버튼을 클릭하면 로그아웃 항목이 보여야 한다.
+  await menuButton.click();
+  await expect(page.getByRole("button", { name: "로그아웃" })).toBeVisible();
+});
+
+test("로그인 사용자가 / 에 접속하면 대시보드로 진입해야 한다", async ({ page }) => {
+  await page.route("**/api/dashboard/overview", async (route) => {
+    await route.fulfill({
+      status: 200,
+      contentType: "application/json",
+      body: JSON.stringify({
+        summaryStats: {
+          totalProjects: 1,
+          totalSubmissions: 0,
+          todaySubmissions: 0,
+          last7DaysSubmissions: 0,
+        },
+        projectStats: [],
+        dailySubmissions: [],
+      }),
+    });
+  });
+
+  await page.goto("/");
+
+  await expect(page).toHaveURL(/\/dashboard/);
+  await expect(page.getByRole("heading", { name: "대시보드" })).toBeVisible();
+});
diff --git a/tests/e2e/projects.spec.ts b/tests/e2e/projects.spec.ts
index e553c34..630d60d 100644
--- a/tests/e2e/projects.spec.ts
+++ b/tests/e2e/projects.spec.ts
@@ -219,7 +219,110 @@ test("프로젝트 목록에서 '폼 제출 내역' 링크를 클릭하면 해
 
   await expect(page.getByText("홍길동")).toBeVisible();
   await expect(page.getByText("user@example.com")).toBeVisible();
-  await expect(page.getByText("010-1234-5678")).toBeVisible();
+  await expect(page.getByText("message: 안녕하세요")).toBeVisible();
   await expect(page.getByText("1990-01-01")).toBeVisible();
   await expect(page.getByText("message: 안녕하세요")).toBeVisible();
 });
+
+test("프로젝트 목록 헤더에서 대시보드로 이동할 수 있어야 한다", async ({ page }) => {
+  await page.route("**/api/auth/me", async (route) => {
+    await route.fulfill({
+      status: 200,
+      contentType: "application/json",
+      body: JSON.stringify({ id: "user-e2e", email: "e2e@example.com", tokenVersion: 1 }),
+    });
+  });
+
+  await page.route("**/api/projects", async (route) => {
+    const request = route.request();
+    const url = new URL(request.url());
+    const method = request.method();
+
+    if (url.pathname === "/api/projects" && method === "GET") {
+      await route.fulfill({
+        status: 200,
+        contentType: "application/json",
+        body: JSON.stringify([
+          {
+            id: "1",
+            title: "테스트 프로젝트 A",
+            slug: "test-project-a",
+            status: "DRAFT",
+            createdAt: new Date("2025-01-01T00:00:00.000Z").toISOString(),
+            updatedAt: new Date("2025-01-01T00:00:00.000Z").toISOString(),
+          },
+        ]),
+      });
+      return;
+    }
+
+    await route.fulfill({
+      status: 404,
+      contentType: "application/json",
+      body: JSON.stringify({ message: "Not implemented in E2E mock" }),
+    });
+  });
+
+  await page.route("**/api/dashboard/overview", async (route) => {
+    await route.fulfill({
+      status: 200,
+      contentType: "application/json",
+      body: JSON.stringify({
+        summaryStats: {
+          totalProjects: 1,
+          totalSubmissions: 0,
+          todaySubmissions: 0,
+          last7DaysSubmissions: 0,
+        },
+        projectStats: [],
+        dailySubmissions: [],
+      }),
+    });
+  });
+
+  await page.goto("/projects");
+
+  await expect(page.getByText("테스트 프로젝트 A")).toBeVisible();
+
+  await page.getByRole("link", { name: "대시보드" }).click();
+
+  await expect(page).toHaveURL(/\/dashboard/);
+  await expect(page.getByRole("heading", { name: "대시보드" })).toBeVisible();
+});
+
+test("전체 제출 내역 페이지에서 공통 GNB와 메뉴가 보여야 한다", async ({ page }) => {
+  await page.route("**/api/projects/submissions", async (route) => {
+    await route.fulfill({
+      status: 200,
+      contentType: "application/json",
+      body: JSON.stringify([]),
+    });
+  });
+
+  await page.route("**/api/auth/logout", async (route) => {
+    await route.fulfill({
+      status: 200,
+      contentType: "application/json",
+      body: JSON.stringify({ message: "ok" }),
+    });
+  });
+
+  await page.goto("/projects/submissions");
+
+  await expect(page.getByRole("heading", { name: "전체 폼 제출 내역" })).toBeVisible();
+
+  const dashboardLink = page.getByRole("link", { name: "대시보드" });
+  await expect(dashboardLink).toBeVisible();
+
+  const projectsLink = page.getByRole("link", { name: "프로젝트 목록" });
+  await expect(projectsLink).toBeVisible();
+
+  const submissionsLink = page.getByRole("link", { name: "전체 제출 내역" });
+  await expect(submissionsLink).toBeVisible();
+
+  const menuButton = page.getByRole("button", { name: "메뉴" });
+  await expect(menuButton).toBeVisible();
+
+  await menuButton.click();
+  await expect(page.getByRole("button", { name: "로그아웃" })).toBeVisible();
+});
diff --git a/tests/unit/AllProjectSubmissionsPage.spec.tsx b/tests/unit/AllProjectSubmissionsPage.spec.tsx
index 52baedf..81d1bc4 100644
--- a/tests/unit/AllProjectSubmissionsPage.spec.tsx
+++ b/tests/unit/AllProjectSubmissionsPage.spec.tsx
@@ -146,11 +146,96 @@ describe("AllProjectSubmissionsPage - 전체 폼 제출 내역", () => {
 
     const backLink = await screen.findByRole("link", { name: "프로젝트 목록" });
     expect(backLink).toBeTruthy();
+    expect(backLink.closest("a")?.getAttribute("href")).toBe("/projects");
+  });
 
-    backLink.click();
+  it("상단 GNB 에 대시보드/프로젝트 목록/전체 제출 내역 링크가 있어야 한다", async () => {
+    const fetchMock = vi.fn().mockResolvedValue(
+      new Response(JSON.stringify([]), {
+        status: 200,
+        headers: { "Content-Type": "application/json" },
+      }),
+    );
+
+    vi.stubGlobal("fetch", fetchMock as any);
+
+    render(<AllProjectSubmissionsPage />);
+
+    const dashboardLink = await screen.findByRole("link", { name: "대시보드" });
+    expect(dashboardLink.closest("a")?.getAttribute("href")).toBe("/dashboard");
+
+    const projectsLink = await screen.findByRole("link", { name: "프로젝트 목록" });
+    expect(projectsLink.closest("a")?.getAttribute("href")).toBe("/projects");
+
+    const submissionsLink = await screen.findByRole("link", { name: "전체 제출 내역" });
+    expect(submissionsLink.closest("a")?.getAttribute("href")).toBe("/projects/submissions");
+  });
+
+  it("GNB에서 현재 페이지인 '전체 제출 내역' 탭에 aria-current=\"page\"가 설정되어야 한다", async () => {
+    const fetchMock = vi.fn().mockResolvedValue(
+      new Response(JSON.stringify([]), {
+        status: 200,
+        headers: { "Content-Type": "application/json" },
+      }),
+    );
+
+    vi.stubGlobal("fetch", fetchMock as any);
+
+    render(<AllProjectSubmissionsPage />);
 
     await waitFor(() => {
-      expect(pushMock).toHaveBeenCalledWith("/projects");
+      expect(fetchMock).toHaveBeenCalledTimes(1);
+    });
+
+    const dashboardLink = await screen.findByRole("link", { name: "대시보드" });
+    const projectsLink = await screen.findByRole("link", { name: "프로젝트 목록" });
+    const submissionsLink = await screen.findByRole("link", { name: "전체 제출 내역" });
+
+    expect(submissionsLink.getAttribute("href")).toBe("/projects/submissions");
+    expect(submissionsLink.getAttribute("aria-current")).toBe("page");
+
+    expect(dashboardLink.getAttribute("aria-current")).toBeNull();
+    expect(projectsLink.getAttribute("aria-current")).toBeNull();
+  });
+
+  it("상단 메뉴 안 '로그아웃' 버튼을 클릭하면 /api/auth/logout 으로 POST 요청을 보내고 /login 으로 이동해야 한다", async () => {
+    const fetchMock = vi.fn().mockImplementation((input: any, init?: any) => {
+      const url = typeof input === "string" ? input : input.url;
+      const method = init?.method ?? "GET";
+
+      if (url === "/api/projects/submissions" && method === "GET") {
+        return Promise.resolve(
+          new Response(JSON.stringify([]), {
+            status: 200,
+            headers: { "Content-Type": "application/json" },
+          }),
+        );
+      }
+
+      if (url === "/api/auth/logout" && method === "POST") {
+        return Promise.resolve(new Response(JSON.stringify({ message: "ok" }), { status: 200 }));
+      }
+
+      return Promise.resolve(new Response(null, { status: 500 }));
+    });
+
+    vi.stubGlobal("fetch", fetchMock as any);
+
+    render(<AllProjectSubmissionsPage />);
+
+    const menuButton = await screen.findByRole("button", { name: "메뉴" });
+    menuButton.click();
+
+    const logoutButton = await screen.findByRole("button", { name: "로그아웃" });
+    logoutButton.click();
+
+    await waitFor(() => {
+      const logoutCall = fetchMock.mock.calls.find(([url, options]) => {
+        return url === "/api/auth/logout" && options?.method === "POST";
+      });
+
+      expect(logoutCall).toBeDefined();
+      expect(pushMock).toHaveBeenCalledWith("/login");
     });
   });
 });
diff --git a/tests/unit/DashboardPage.spec.tsx b/tests/unit/DashboardPage.spec.tsx
new file mode 100644
index 0000000..d0c4711
--- /dev/null
+++ b/tests/unit/DashboardPage.spec.tsx
@@ -0,0 +1,94 @@
+import { describe, it, expect, afterEach, vi } from "vitest";
+import { render, screen, cleanup, waitFor } from "@testing-library/react";
+
+import DashboardPage from "@/app/dashboard/page";
+
+export const pushMock = vi.fn();
+
+vi.mock("next/navigation", () => {
+  return {
+    __esModule: true,
+    useRouter: () => ({ push: pushMock }),
+  };
+});
+
+afterEach(() => {
+  cleanup();
+  vi.unstubAllGlobals();
+  vi.clearAllMocks();
+});
+
+describe("DashboardPage - GNB와 테마", () => {
+  it("GNB에서 현재 페이지인 '대시보드' 탭에 aria-current=\"page\"가 설정되어야 한다", async () => {
+    const overview = {
+      summaryStats: {
+        totalProjects: 0,
+        totalSubmissions: 0,
+        todaySubmissions: 0,
+        last7DaysSubmissions: 0,
+      },
+      projectStats: [],
+      dailySubmissions: [],
+    };
+
+    const fetchMock = vi.fn().mockResolvedValue(
+      new Response(JSON.stringify(overview), {
+        status: 200,
+        headers: { "Content-Type": "application/json" },
+      }),
+    );
+
+    vi.stubGlobal("fetch", fetchMock);
+
+    render(<DashboardPage />);
+
+    const dashboardLink = await screen.findByRole("link", { name: "대시보드" });
+    const projectsLink = await screen.findByRole("link", { name: "프로젝트 목록" });
+    const submissionsLink = await screen.findByRole("link", { name: "전체 제출 내역" });
+
+    expect(dashboardLink.getAttribute("href")).toBe("/dashboard");
+    expect(dashboardLink.getAttribute("aria-current")).toBe("page");
+
+    expect(projectsLink.getAttribute("aria-current")).toBeNull();
+    expect(submissionsLink.getAttribute("aria-current")).toBeNull();
+  });
+
+  it("헤더에 테마 전환 버튼이 있고 클릭 시 html 요소의 dark 클래스가 토글되어야 한다", async () => {
+    const overview = {
+      summaryStats: {
+        totalProjects: 0,
+        totalSubmissions: 0,
+        todaySubmissions: 0,
+        last7DaysSubmissions: 0,
+      },
+      projectStats: [],
+      dailySubmissions: [],
+    };
+
+    const fetchMock = vi.fn().mockResolvedValue(
+      new Response(JSON.stringify(overview), {
+        status: 200,
+        headers: { "Content-Type": "application/json" },
+      }),
+    );
+
+    vi.stubGlobal("fetch", fetchMock);
+
+    render(<DashboardPage />);
+
+    const html = document.documentElement;
+    html.classList.remove("dark");
+
+    const themeToggleButton = await screen.findByRole("button", { name: "테마 전환" });
+
+    expect(html.classList.contains("dark")).toBe(false);
+
+    themeToggleButton.click();
+
+    expect(html.classList.contains("dark")).toBe(true);
+
+    themeToggleButton.click();
+
+    expect(html.classList.contains("dark")).toBe(false);
+  });
+});
diff --git a/tests/unit/LoginPage.spec.tsx b/tests/unit/LoginPage.spec.tsx
index 0f713ba..bda4543 100644
--- a/tests/unit/LoginPage.spec.tsx
+++ b/tests/unit/LoginPage.spec.tsx
@@ -24,7 +24,7 @@ describe("LoginPage", () => {
     vi.clearAllMocks();
   });
 
-  it("올바른 이메일/비밀번호로 로그인하면 /api/auth/login 으로 요청을 보내고 /projects 로 이동해야 한다", async () => {
+  it("올바른 이메일/비밀번호로 로그인하면 /api/auth/login 으로 요청을 보내고 /dashboard 로 이동해야 한다", async () => {
     const fetchMock = vi.fn().mockImplementation((input: any, init?: any) => {
       const url = typeof input === "string" ? input : input.url;
       const method = init?.method ?? "GET";
@@ -82,7 +82,7 @@ describe("LoginPage", () => {
     expect(body.password).toBe("securePass1");
 
     await waitFor(() => {
-      expect(pushMock).toHaveBeenCalledWith("/projects");
+      expect(pushMock).toHaveBeenCalledWith("/dashboard");
     });
   });
 
@@ -129,7 +129,7 @@ describe("LoginPage", () => {
     expect(errorText).toBeTruthy();
   });
 
-  it("이미 로그인된 상태에서 /login 에 접근하면 /projects 로 리다이렉트해야 한다", async () => {
+  it("이미 로그인된 상태에서 /login 에 접근하면 /dashboard 로 리다이렉트해야 한다", async () => {
     const fetchMock = vi.fn().mockResolvedValue(
       new Response(JSON.stringify({ id: "1", email: "user@example.com", tokenVersion: 1 }), {
         status: 200,
@@ -144,7 +144,7 @@ describe("LoginPage", () => {
     await waitFor(() => {
       expect(fetchMock).toHaveBeenCalledTimes(1);
       expect(fetchMock.mock.calls[0][0]).toBe("/api/auth/me");
-      expect(pushMock).toHaveBeenCalledWith("/projects");
+      expect(pushMock).toHaveBeenCalledWith("/dashboard");
     });
   });
 });
diff --git a/tests/unit/ProjectsPage.spec.tsx b/tests/unit/ProjectsPage.spec.tsx
index eb69091..3b26f15 100644
--- a/tests/unit/ProjectsPage.spec.tsx
+++ b/tests/unit/ProjectsPage.spec.tsx
@@ -112,6 +112,119 @@ describe("ProjectsPage - 프로젝트 목록", () => {
     expect(link.closest("a")?.getAttribute("href")).toBe("/projects/submissions");
   });
 
+  it("헤더에 대시보드 페이지(/dashboard)로 이동하는 링크가 있어야 한다", async () => {
+    const projects = [
+      {
+        id: "1",
+        title: "테스트 프로젝트 A",
+        slug: "test-project-a",
+        status: "DRAFT",
+        createdAt: "2025-01-01T00:00:00.000Z",
+        updatedAt: "2025-01-01T00:00:00.000Z",
+      },
+    ];
+
+    const fetchMock = vi.fn().mockResolvedValue(
+      new Response(JSON.stringify(projects), {
+        status: 200,
+        headers: { "Content-Type": "application/json" },
+      }),
+    );
+
+    vi.stubGlobal("fetch", fetchMock);
+
+    render(<ProjectsPage />);
+
+    await waitFor(() => {
+      expect(fetchMock).toHaveBeenCalledTimes(1);
+    });
+
+    const link = screen.getByText("대시보드");
+    expect(link).toBeTruthy();
+    expect(link.closest("a")?.getAttribute("href")).toBe("/dashboard");
+  });
+
+  it("GNB에서 현재 페이지인 '프로젝트 목록' 탭에 aria-current=\"page\"가 설정되어야 한다", async () => {
+    const projects = [
+      {
+        id: "1",
+        title: "테스트 프로젝트 A",
+        slug: "test-project-a",
+        status: "DRAFT",
+        createdAt: "2025-01-01T00:00:00.000Z",
+        updatedAt: "2025-01-01T00:00:00.000Z",
+      },
+    ];
+
+    const fetchMock = vi.fn().mockResolvedValue(
+      new Response(JSON.stringify(projects), {
+        status: 200,
+        headers: { "Content-Type": "application/json" },
+      }),
+    );
+
+    vi.stubGlobal("fetch", fetchMock);
+
+    render(<ProjectsPage />);
+
+    await waitFor(() => {
+      expect(fetchMock).toHaveBeenCalledTimes(1);
+    });
+
+    const dashboardLink = await screen.findByRole("link", { name: "대시보드" });
+    const projectsLink = await screen.findByRole("link", { name: "프로젝트 목록" });
+    const submissionsLink = await screen.findByRole("link", { name: "전체 제출 내역" });
+
+    expect(projectsLink.closest("a")?.getAttribute("href")).toBe("/projects");
+    expect(projectsLink.closest("a")?.getAttribute("aria-current")).toBe("page");
+
+    expect(dashboardLink.closest("a")?.getAttribute("aria-current")).toBeNull();
+    expect(submissionsLink.closest("a")?.getAttribute("aria-current")).toBeNull();
+  });
+
+  it("헤더에 테마 전환 버튼이 있고 클릭 시 html 요소의 dark 클래스가 토글되어야 한다", async () => {
+    const projects = [
+      {
+        id: "1",
+        title: "테스트 프로젝트 A",
+        slug: "test-project-a",
+        status: "DRAFT",
+        createdAt: "2025-01-01T00:00:00.000Z",
+        updatedAt: "2025-01-01T00:00:00.000Z",
+      },
+    ];
+
+    const fetchMock = vi.fn().mockResolvedValue(
+      new Response(JSON.stringify(projects), {
+        status: 200,
+        headers: { "Content-Type": "application/json" },
+      }),
+    );
+
+    vi.stubGlobal("fetch", fetchMock);
+
+    render(<ProjectsPage />);
+
+    await waitFor(() => {
+      expect(fetchMock).toHaveBeenCalledTimes(1);
+    });
+
+    const html = document.documentElement;
+    html.classList.remove("dark");
+
+    const themeToggleButton = await screen.findByRole("button", { name: "테마 전환" });
+
+    expect(html.classList.contains("dark")).toBe(false);
+
+    themeToggleButton.click();
+
+    expect(html.classList.contains("dark")).toBe(true);
+
+    themeToggleButton.click();
+
+    expect(html.classList.contains("dark")).toBe(false);
+  });
+
   it("각 프로젝트 행에는 폼 제출 내역 페이지(/projects/[slug]/submissions)로 이동하는 링크가 있어야 한다", async () => {
     const projects = [
       {
@@ -227,6 +340,44 @@ describe("ProjectsPage - 프로젝트 목록", () => {
     confirmSpy.mockRestore();
   });
 
+  it("프로젝트 목록 상단 툴바에 '새 프로젝트 만들기' 버튼과 '선택 삭제' 버튼이 함께 보여야 한다", async () => {
+    const projects = [
+      {
+        id: "1",
+        title: "테스트 프로젝트 A",
+        slug: "test-project-a",
+        status: "DRAFT",
+        createdAt: "2025-01-01T00:00:00.000Z",
+        updatedAt: "2025-01-01T00:00:00.000Z",
+      },
+      {
+        id: "2",
+        title: "테스트 프로젝트 B",
+        slug: "test-project-b",
+        status: "PUBLISHED",
+        createdAt: "2025-01-02T00:00:00.000Z",
+        updatedAt: "2025-01-02T00:00:00.000Z",
+      },
+    ];
+
+    const fetchMock = vi.fn().mockResolvedValue(
+      new Response(JSON.stringify(projects), {
+        status: 200,
+        headers: { "Content-Type": "application/json" },
+      }),
+    );
+
+    vi.stubGlobal("fetch", fetchMock);
+
+    render(<ProjectsPage />);
+
+    // 상단 툴바에서 선택 삭제와 새 프로젝트 만들기 버튼이 함께 보여야 한다.
+    const toolbar = await screen.findByTestId("projects-toolbar");
+
+    expect(toolbar.querySelector("button[type='button']")?.textContent).toContain("선택 삭제");
+    expect(toolbar.querySelector("a[href='/editor?new=1']")?.textContent).toContain("새 프로젝트 만들기");
+  });
+
   it("체크박스로 여러 프로젝트를 선택한 뒤 '선택 삭제' 버튼으로 일괄 삭제할 수 있어야 한다", async () => {
     const projects = [
       {
@@ -336,7 +487,7 @@ describe("ProjectsPage - 프로젝트 목록", () => {
     });
   });
 
-  it("헤더의 '로그아웃' 버튼을 클릭하면 /api/auth/logout 으로 POST 요청을 보내고 /login 으로 이동해야 한다", async () => {
+  it("헤더의 메뉴 안 '로그아웃' 버튼을 클릭하면 /api/auth/logout 으로 POST 요청을 보내고 /login 으로 이동해야 한다", async () => {
     const projects = [
       {
         id: "1",
@@ -376,6 +527,9 @@ describe("ProjectsPage - 프로젝트 목록", () => {
       expect(fetchMock).toHaveBeenCalled();
     });
 
+    const menuButton = await screen.findByRole("button", { name: "메뉴" });
+    fireEvent.click(menuButton);
+
     const logoutButton = await screen.findByRole("button", { name: "로그아웃" });
     fireEvent.click(logoutButton);
 
diff --git a/tests/unit/SignupPage.spec.tsx b/tests/unit/SignupPage.spec.tsx
index 869f336..efa67a5 100644
--- a/tests/unit/SignupPage.spec.tsx
+++ b/tests/unit/SignupPage.spec.tsx
@@ -24,7 +24,7 @@ describe("SignupPage", () => {
     vi.clearAllMocks();
   });
 
-  it("새 이메일/비밀번호로 회원가입하면 /api/auth/signup 으로 요청을 보내고 /projects 로 이동해야 한다", async () => {
+  it("새 이메일/비밀번호로 회원가입하면 /api/auth/signup 으로 요청을 보내고 /dashboard 로 이동해야 한다", async () => {
     const fetchMock = vi.fn().mockImplementation((input: any, init?: any) => {
       const url = typeof input === "string" ? input : input.url;
       const method = init?.method ?? "GET";
@@ -82,7 +82,7 @@ describe("SignupPage", () => {
     expect(body.password).toBe("securePass1");
 
     await waitFor(() => {
-      expect(pushMock).toHaveBeenCalledWith("/projects");
+      expect(pushMock).toHaveBeenCalledWith("/dashboard");
     });
   });
 
@@ -129,7 +129,7 @@ describe("SignupPage", () => {
     expect(errorText).toBeTruthy();
   });
 
-  it("이미 로그인된 상태에서 /signup 에 접근하면 /projects 로 리다이렉트해야 한다", async () => {
+  it("이미 로그인된 상태에서 /signup 에 접근하면 /dashboard 로 리다이렉트해야 한다", async () => {
     const fetchMock = vi.fn().mockResolvedValue(
       new Response(JSON.stringify({ id: "1", email: "user@example.com", tokenVersion: 1 }), {
         status: 200,
@@ -144,7 +144,7 @@ describe("SignupPage", () => {
     await waitFor(() => {
       expect(fetchMock).toHaveBeenCalledTimes(1);
       expect(fetchMock.mock.calls[0][0]).toBe("/api/auth/me");
-      expect(pushMock).toHaveBeenCalledWith("/projects");
+      expect(pushMock).toHaveBeenCalledWith("/dashboard");
     });
   });
 });
-- 
2.52.0